空泡蝶鞍的CT诊断(附23例报告)

目的：提出空泡蝶鞍的CT诊断要点。材料与方法：分析23例空泡蝶鞍的临床及CT表现，并从病因病理学角度加以解释．结果：空泡蝶鞍的CT诊断要点：1．鞍上池疝入鞍内．垂体未见或压缩变扁呈“凹”形。2．漏斗征：（即显示扩大的蝶鞍中的垂体蒂）．3．伴有蝶鞍变形扩大，鞍底下陷．4．并发垂体微腺瘤．其中漏斗征系空泡蝶鞍的特征性表现,结论：空泡蝶鞍的CT检查具有特异性．CT能做出正确诊断，需与蝶鞍囊肿进行鉴别。

CT Diagnosis or Empty Sella Syndrome(An Analysis of 23 Cases)

Purpose: To propose CT diagnostic criteria of empty sella. Meterials and Methods: The CT findings and clinical symptoms in 23 pediatric cases with empty sella were analyred, and discussed on pathological basis. Results: The CT diagnostic criteria of empty sella were: 1. herniation of suprasellar cistern to intrasellar, no evidence of hypophysis, or reduction and indentation of hypophysis, 2. appearance of the in fundibulum sign (appeared pituilary stalk in enlarging sella), 3. enlarged sella turcica and subsided floor of sella. 4. complicated pituitary miscroadenoma. Among then, the most important sign was the second one. Conclusion: Correct diagnosis of empty sella could be made on the basis of CT characteristics. Empty sella should be differentiated from intrasellar cyst.